We study this iconic shark species, named for its stout body and matching disposition, along the Gulf of Mexico. Over the past two decades, we have documented a fivefold increase in baby bull sharks ...

A sight that even experienced marine biologists don’t see every day: An octopus clings to the head of the world’s fastest shark — and is comfortably carried away. What this unusual encounter is all ...

One summer day off the northern coast of New Zealand, Rochelle Constantine noticed something strange on the water’s surface. The dorsal fin slicing through the Hauraki Gulf belonged to a shortfin mako ...

An octopus got to rest its many legs when it ended up aboard a mako shark for a leisurely ride. In a video captured in December 2023 and released in March 2025, the two species were in peaceful ...